(8781) Yurka Main-belt Asteroid
Discovered on 1 April 1976 by N. S. Chernykh at Nauchnyj.
Yuri Sergeevich Efimov (b. 1935) is an astrophysicist who has worked at the Crimean Astrophysical Observatory since 1958. He is a prominent expert in stellar photometry and polarimetry and is well known for his research on peculiar stars and extragalactic objects.Naming citation (20001013/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Yurka is today
Seen from above the solar system on 2026-10-14: Yurka is 2.04 au from the Sun and 2.74 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 8781 |
| Provisional designation | 1976 GA2 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.09 km (#14,990 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.322 |
| Rotation period | 5.88 hours |
| Absolute magnitude (H) | 14.69 |
| Orbital period | 3.63 years |
| Semi-major axis | 2.36 au |
| Perihelion – aphelion | 1.96 – 2.77 au |
| Eccentricity | 0.172 |
| Inclination | 2.24° |
| Closest distance between its orbit and Earth's (MOID) | 0.959 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Yuri
- (6942) Yurigulyaev
- (20225) Petrunin
- (29547) Yurimazzanti
- (44570) Yuribeletsky
- (68585) Skorov
- (212924) Yurishevchuk
- (315276) Yurigradovsky
- (346666) Knorozov
- (549650) Bilibin
All asteroids named after someone called Yuri
Also discovered on 1 April 1976
- (2206) Gabrova
- (2312) Duboshin
- (2361) Gogol
- (2606) Odessa
- (2722) Abalakin
- (2734) Hasek
- (2769) Mendeleev
- (2849) Shklovskij
- (2922) Dikan'ka
- (3246) Bidstrup
- (3723) Voznesenskij
- (4165) Didkovskij
More named asteroids discovered by N. S. Chernykh
- (1796) Riga
- (1836) Komarov
- (1907) Rudneva
- (1908) Pobeda
- (2004) Lexell
- (2006) Polonskaya
- (2036) Sheragul
- (2113) Ehrdni
- (2123) Vltava
- (2149) Schwambraniya
- (2164) Lyalya
- (2178) Kazakhstania
← (8780) Forte · (8782) Bakhrakh →